1029870789481 has 12 divisors (see below), whose sum is σ = 1078044000768. Its totient is φ = 983767590344.

The previous prime is 1029870789469. The next prime is 1029870789523. The reversal of 1029870789481 is 1849870789201.

It is not a de Polignac number, because 1029870789481 - 2¹⁷ = 1029870658409 is a prime.

It is a super-2 number, since 2×1029870789481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1029870789881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 917065 + ... + 1703158.

It is an arithmetic number, because the mean of its divisors is an integer number (89837000064).

Almost surely, 2^{1029870789481} is an apocalyptic number.

It is an amenable number.

1029870789481 is a deficient number, since it is larger than the sum of its proper divisors (48173211287).

1029870789481 is an equidigital number, since it uses as much as digits as its factorization.

1029870789481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621012 (or 2620989 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 64.

The spelling of 1029870789481 in words is "one trillion, twenty-nine billion, eight hundred seventy million, seven hundred eighty-nine thousand, four hundred eighty-one".